bored out of one's mind
01
退屈で死にそう, 退屈でたまらない
to be bored to an extreme degree
idiom
informal
例
As I waited for my delayed flight with no entertainment or books, I was bored out of my mind at the airport.
3時間の講義の間、退屈で死にそうだった。
退屈で死にそう, 退屈でたまらない